Improvement in corn-planters



sheets sheet 1.

4 G'. W. BROWN Corn-Planter;

No; 203,997. Pa tented May 21,1878

NAFETERS, PHOTO-LITHOGRAPNER. WASHINGTON. D. C

2 Sheets-Sheen? G; W. BROWN Corn-Planter.

Patented May 21,1878.

Y I mmmnu Mdww UNITE-D STATES PATENT OFFICE;

GEORGE W. BROWN, OF GALESBURG, ILLINOIS.

IMPROVEMENT IN CORN-PLANTER'S.

Specification forming part of Letters Patent No. 203,997, dated May 21,1878; application filed J anuary 4, 1878.

To all whom it may concern:

Be it known that I, GEORGE W. BROWN, of

Galesburg, in the county of Knox and State clear, and exact descriptionthereof, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

Figure 1, Sheet 1, is a vertical sectional view in the line on as,showing the rear side of Fig. 2. Fig. 2 is a top-plan view of theforward frame of a corn-planter embodying my invention. Fig. 3, Sheet 2,is aperspective view of a seedbox. Fig. 4 is a top view of Fig. 3,partly in section. Fig. 5 is the same view as Fig. 4, with the cap overthe seed-cup wheel removed. Fig. 6 is a side elevation of the seed-cupwheel. Fig. 7 is the same view as Fig. 5, but the parts in differentrelative positions. Fig.8 is the same view as Fig. 5, but the parts indifl'erent relative positions. Fig. 9 is a sectional view of the lowerpart of Fig. 3 in the line y 3 My invention relates to improvements incorn-planters of that class having rotary seedcup wheels. In this classof corn-planters, as heretofore constructed, a single bar has been usedto actuate the seed-cup wheels, involving complicated and more or lessobjectionable construction to adapt it to impart a forward movement tothe seed-cup wheel by the rectilinear reciprocating movement of the bar.

The invention herein described consists,

first, in the employment of an actuating-bar made in two parts, sogeared to each other that a movement of either bar longitudinally ineither direction will impart a longitudinal movement in the oppositedirection to the other bar; second, in the use of pawls on eachactuating-bar, which act alternately on projecting teeth to impart anintermittent rotary motion to the seed-cup plate by the alternate actionof the actuating-bars; third, in the use of detents on eachactuating-bar, so arranged that the detent on each bar will act as astop to the seed-cup wheel to prevent its momentum carrying it too farwhen impelled by the pawl on the other bar; fourth. in the use of aseedcup wheel having two sets of teeth in differ. ent planes, adaptingthem to be operated upon by two actuating-bars; fifth, in thecombination of a lever with dual bars for actuating seed-cup wheels,connected so that oscillating said lever will propel one of the bars inone direction and the other in the opposite direction; sixth, inimprovements in the method of fixing said lever in position; seventh, ina seed-box constructed with an enlarged lower portion, permitting theseed in the box to come. in contact with all parts of the cap coveringthe seed-cup wheel and a small upper portion.

The invention further consists in certain details of construction andarrangement, hereinafter fully described.

Referring to the drawings by letters, A A represent the seed-boxes; B,the seed-tubes; O, the runners; D and D, respectively,"the forward andrear transverse frame-bars; E, the upper frame-bar, and E the dropmansseat, constituting the forward frame of an ordinary two-rowcorn-planter.

F is a seed-cup wheel, journaled in the bot-v tom of the box A on astud, a, and provided with seed-cup apertures f in clusters of three, asshown by the drawings, or in any other desired numbers. The wheel F hasan annular flange, f, with an upper series of teeth, g, on itsperiphery, corresponding in number to onehalf the number of series ofseed-cups, and a series of teeth, g,in a lower plane than the teeth g,and arranged intermediate with the teeth g around the wheel F. The teethg g are formed with a radial and a sloping side, as shown in thedrawings.

H is an ordinary cap over the wheel F, and

has the ordinary annular opening h, coinci dent withthe path of theseed-cups as they revolve by the rotation of the wheel F, and has alsothe ordinary cut-ofish.

I I are two parallel bars, arranged one I above the other, and withtheir ends entering the bottoms of .the boxes A to one side of theseed-cup wheels F. Midlength the bars I I have rack-bars t i on theiradjacent faces, which gear with a pinion, J, journaled on a stud, 7',secured to one of the frame-bars D, or otherwise fixed in position, sothat moving either bar I or I longitudinally will impart a reverse.longitudinal movement to the other bar in the evident manner.

K K are levers, with sockets k in their upper ends, and are journaled atk to the framehar E, and their lower ends provided with segment-gears k,which gear with short rackbars k on the bar I, so that they will holdthe bar I down to its place, and may be oscillated to reciprocate thebar I, and thereby the bar I. K is a hand-lever, which may be seated inthe socket in either lever Kfor convenience of thedropman in operatingthe levers K.

pawl, L, journaled thereto at l, and pressed toward the seed-cup wheel Fby a spring, I, a distance limited by a stud-pin, l, and beyond the freeend of the pawl L and on the extreme end of the bar I a detent orupwardly-projecting stop, M.

The ends of the lower bar I have each a spring-pawl, L, and detent M,same as the corresponding parts L and M, respectively, on the bar I. Theends of the lower bar I are also enlarged, and provided with theusualcavity at for the reception of the upper end of the ordinary dischargingvalve N in the seedtu e.-

To give the seed free access to all parts of the upper surface of thecap'H without execs sive enlargement of the seed-box, a metal plate, a,is placed at oneside andbottom of the seed-box, with a projection, a,which extends over the cap H and around the side of the seed-cup wheel,as shown in the drawmgs. V a

in operation the bars I I are reciprocated by means of a lever, K. AtFig. 7 the bar I is at the limit of its throw in the direction shown bythe arrow, and the bar I at the limit of its throw in the oppositedirection.

In moving the bar I to the position shown at Fig. 7 the extremity of thepawlL abuts against the radial side of one of the teeth g and gives apartial rotation to the wheel F, carrying it to the position shown atsame figure, at which position the wheel F is stopped and its momentumprevented from carrying it farther by the detent M on thelower. bar Iresting against the sloping side 'of an adjacent tooth of the lowerseries 9. As the bar I is drawn back on its return movement, and the barI thereby thrust forward, the pawl L will rise over the sloping side ofthe toothy,- as shown at Fig. 8, and the pawl L, acting on one of thelower series of teeth y, will ini-. part another movement tothe'seed-cup plate and carry it to the position shown at .Fig. 5, whenthe detent M on the bar Iwill, by coining in contact with the slopingside of a tooth, g, as shown at same figure,act as a stop to themovement of the wheel F. I v

Successive repetitions of the foregoingopf erations will impartsuccessive impulses to 1 .or parts, arranged to operate simultaneouslyin opposite directions, in combination with and for the purpose ofactuating the seedcup wheels, in the manner substantially as and for thepurpose specified. Each end of the upper bar I has a spring- 2. The barsI I and pinion J, in combination with seed-cup wheels F, substantiallyas described, and for the purpose specified.

3., The bars I I having pawls L L, respectively, in combination withseed-cup wheel F,

having series of teeth 9 g, upon which the pawlsact, substantially asdescribed, and for the purpose specified.

4. The combination, with a seed-cup wheel, F, of two actuating-bars,each having a pawl adaptedlto impart movement to the seedcup wheelalternately, substantially as described, and for the purpose specified.

5. The detents M M, in combination with the bars I I and spring-pawls LL, substangially as described, and for the purpose specie 6. Aseed-cupwheel having series of teeth '9" and g in difl'erent planes, incombination with bars II, having pawl L in same plane as teeth g,. and asimilar pawl, L, in same plane as teeth g, substantially as and for thepurpose specified. e 7. Ineombination with-the seed-wheels F and bars II, geared-or connected so that longitudinal movement of one bar willmove the other inan opposite direction, a lever, K, by which they maybe. operated, substantially as described, and for the purpose specified.

8. In a corn-planting machine, the combination of the levers K, pivotedto the bar E, having handles K and segmentgears on theirlower. ends,with bar I, having rack-bars to gear with said segment-gears, anda-rackbar, i, to .gear with pinion -J, so that the levers K willpreventthe rack-bar I from spring ing upward and out of gear with the pinion J,substantially as and for the purpose set fOIflJh. j v 9. The seed-boxconstructed with an en Iargement, a", at one side and bottom, saidenlarged portion being projected over the seed-wheel, substantially asdescribed, and for the purpose specified.

In testimonythat I claim the foregoing as two witnesses.- A

GEORGE W. BROWN.

.my ownI affix my signature in presence of Witnesses:

. IFS! r l Nsv L. S'rEvENs

